8991420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{541}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 25313568

約数和(自身を除く): 16322148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 277, 541, 554, 831, 1082, 1108, 1385, 1623, 1662, 2164, 2705, 2770, 3246, 3324, 4155, 5410, 5540, 6492, 8115, 8310, 10820, 16230, 16620, 32460, 149857, 299714, 449571, 599428, 749285, 899142, 1498570, 1798284, 2247855, 2997140, 4495710, 8991420]

約数ペア:

[(1, 8991420), (2, 4495710), (3, 2997140), (4, 2247855), (5, 1798284), (6, 1498570), (10, 899142), (12, 749285), (15, 599428), (20, 449571), (30, 299714), (60, 149857), (277, 32460), (541, 16620), (554, 16230), (831, 10820), (1082, 8310), (1108, 8115), (1385, 6492), (1623, 5540), (1662, 5410), (2164, 4155), (2705, 3324), (2770, 3246)]